Differential cross sections for fragmentation of positronium

Cross sections differential with respect to energy and angle of ejected positrons and electrons for Ps(1s) fragmentation in collision with He, Ne, Ar, Kr and Xe targets are reported. For Ne, Ar, Kr and Xe, only the case where the target is not excited (target elastic collisions) is considered. For H...

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Published inNuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 247; no. 1; pp. 111 - 116
Main Authors Walters, H.R.J., Starrett, C., McAlinden, Mary T.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2006
Subjects
Differential cross sections
Electron
First Born approximation
Fragmentation
Impulse approximation
Ionization
Noble gases
Positron
Positronium
Noble gases
Impulse approximation
Ionization
36.10.Dr
Differential cross sections
Electron
First Born approximation
Positronium
95.30.Ky
Positron
Fragmentation
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Summary:Cross sections differential with respect to energy and angle of ejected positrons and electrons for Ps(1s) fragmentation in collision with He, Ne, Ar, Kr and Xe targets are reported. For Ne, Ar, Kr and Xe, only the case where the target is not excited (target elastic collisions) is considered. For He, fragmentation with target excitation/ionization (target inelastic collisions) is also studied. The impulse approximation has been used for target elastic fragmentation, the first Born approximation for target inelastic processes.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2006.01.046